Update: Bandai Namco has confirmed that Road to Bourto will be coming to the west only one day later on April 24th, it seems that Momoshiki and Kinshiki along with the 11 costumes will be included apart of the game. No word if it will have a physical release but we can only hope.
Original story: The latest issue of Shonen Jump magazine revealed that the fourth title in the Ultimate Ninja Storm series would be making its way to Nintendo Switch. Road to Boruto is an expanded version of the original Ninja Storm 4 which adds a story mode for Boruto as well as all previous DLC from the original. Road to Boruto will cost 6,680 Yen and alongside this announcement was the reveal of 2 more downloadable characters them being Momoshiki and Kinshiki as well as 11 costumes from the Boruto era.
Naruto Shippuden: Ultimate Ninja Storm 4 Road to Boruto releases on April 23 in Japan with no word of a Western release.